Gear Metering Pump for Extraction Feed

Gear Metering Pump for Extraction Feed

Gear Metering Pump: The "Key Player" in Extraction Feed Precision Control

In liquid-liquid extraction processes in hydrometallurgy, rare earth separation, lithium battery materials, and fine chemicals, the stability

 of the ratio (organic phase/aqueous phase flow rate) directly determines the extraction rate and product purity. When dealing with

 low-viscosity extractants (such as P204, N235, ethyl acetate, dichloromethane, etc.) with viscosity close to water, traditional pumps are

 prone to extraction imbalance due to flow rate fluctuations.

Why does the industry generally choose gear metering pumps as extraction feed pumps?

Pulsation-Free, Stable Ratio

Gear metering pumps use precision meshing gears for forced delivery, resulting in pulse-free output. Combined with frequency 

conversion speed regulation, a flow repeatability accuracy of ±0.5% can be achieved, fundamentally ensuring a constant ratio.

Low Viscosity Adaptability

For aqueous viscous media, gear metering pumps eliminate internal leakage through a small-gap design, maintaining high volumetric

 efficiency even when conveying low-viscosity solvent-based liquids.

Corrosion and Dry Run Resistance: Standard configuration includes 304/316L stainless steel and special alloys (Hastelloy, duplex steel), 

paired with PTFE/FFKM seals, resistant to organic solvents and acidic extractants; optional double-end mechanical seals or magnetic 

drive completely eliminates leakage.

Typical Workstations:

• Organic/aqueous phase feed to extraction mixers and clarifiers

• Continuous quantitative conveying in extraction towers and centrifugal extractors

• Rare earth cascade extraction production lines, organic circulation loops for lithium extraction from salt lakes

Industry Naming: The standard way to describe this type of pump on a process flow chart is—extraction feed metering pump or

 organic phase steady flow pump.

If you are planning an extraction process and need selection consultation or a specific quote, please contact our professional team:

📧 [email protected]

📞 WhatsApp: +86 18049841995